Class: Hash

Inherits:
Object
  • Object
show all
Defined in:
lib/xmltohash.rb

Overview

extend standard class

Class Method Summary collapse

Class Method Details

.from_xml(xml_io) ⇒ Object 



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# File 'lib/xmltohash.rb', line 10

def from_xml( xml_io )
  result = Nokogiri::XML( xml_io )
  { result.root.name.to_sym => xml_node_to_hash( result.root ) }
rescue StandardError => e
  # raise your custom exception here
  raise e
end

.xml_node_to_hash(node) ⇒ Object 



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# File 'lib/xmltohash.rb', line 18

def xml_node_to_hash( node )
  # If we are at the root of the document, start the hash
  return node.content.to_s unless node.element?

  result_hash = {}
  if node.attributes != {}
    attributes = {}
    node.attributes.each_key do |key|
      attributes[ node.attributes[ key ].name.to_sym ] = node.attributes[ key ].value
    end
  end
  return attributes unless node.children.size.positive?

  node.children.each do |child|
    result = xml_node_to_hash( child )

    if child.name == 'text'
      unless child.next_sibling || child.previous_sibling
        return result unless attributes

        result_hash[ child.name.to_sym ] = result
      end
    elsif result_hash[ child.name.to_sym ]

      if result_hash[ child.name.to_sym ].is_a?( Object::Array )
        result_hash[ child.name.to_sym ] << result
      else
        result_hash[ child.name.to_sym ] = [ result_hash[ child.name.to_sym ] ] << result
      end
    else
      result_hash[ child.name.to_sym ] = result
    end
  end
  if attributes
    # add code to remove non-data attributes e.g. xml schema, namespace here
    # if there is a collision then node content supersets attributes
    result_hash = attributes.merge( result_hash )
  end
  result_hash
end